baber/WOPTO huggingface dataset:
Patent GB-1205500-A (GB)
Title: Improvements in or relating to thermally developable light-sensitive elements
IPC: G03C1/498
Filed: 1968-01-26
Abstract: 1,205,500. Photographic materials and processes. FUJI SHASHIN FILM K.K. Jan.26 1968 [Jan.27, 1967], No.4199/68. Heading G2C. A heat-developable, light-sensitive material comprising a support bearing a layer or layers containing (a) a light-insensitive and reducible organic silver salt, (b) an inorganic halide which forms a silver halide by reaction with (a) or a silver halide, (c) a reducing agent capable of being decomposed by ultraviolet radiation to lose its reducing property, the agent being a compound containing a group of formula:- wherein R 1  and R 2  are hydrogen, alkyl or acyl and n is 0 or 1, (d) a material capable of accelerating the decomposition of (c) on such irradiation and (e) an organic acid and a salt thereof or  specified silver salts (a) are those of carboxylic acids, benztriazole, benzthiazole, phenyltriazole, mercapto tetrazole and tetrazaindene. Specified reducing agents (c) are ascorbic acid and its  esters, furoin,  benzoin, dihydroxy acetone,  dehydroxynapthalenes and 4 -alkoxy -1 -naphthols.  Specified accelerators (d) are (i) diketones such as diacetyl and benzil (ii) anthraquinones and fluorenone (iii) metal oxides (iv) cerium salts and (v) phthalein dyes, cyanine dyes and methylene blue, methyl violet, proflavise, phenosafranine and  chrysoidine. On imagewise exposure to light and heating a negative image is obtained. A positive image is obtained by imagewise exposure to ultraviolet light, followed by uniform exposure to visible light and heating.
Patent GB-614929-A (GB)
Title: Improvements relating to viewing devices such as gun-sights and camera view-finders
IPC: G02B23/14
Filed: 1946-02-11
Abstract: 614,929. Sighting devices. KODAK, Ltd. Feb. 11, 1946, No. 4237. Convention date, Nov. 28, 1944. [Class 92 (ii)] [Also in Group XX] In a sighting device of the type wherein an observer sees a distant graticule image superposed on a distant object by means of a partial reflector, the distant image is formed by several juxtaposed and identical collimators each comprising a graticule and a collimating element, the arrangement resulting in an extension of view finder's exit pupil. As shown in Fig. 1, the view finder may comprise a semi-reflector 21 through which an observer at 23 sees a distant object having superposed thereon a graticule image formed by reflection at 21 of the rays from the collimators comprising collimating lenses 25 co-operating with graticules 26 illuminated at 31. Such view finders may be incorporated in a photographic camera or gun-sight and, as shown in Fig. 6, for a camera, a view finder may comprise a semireflector 56, hinged about a horizontal axis, which reflects light to the observer from collimators comprising transparent blacks, the upper surfaces 71 of which constitute collimating lenses while graticules are engraved on the lower surfaces 70 ; the collimators receive daylight via a reflector 68. Other semi-reflectors may be used with the semireflector 21 in Fig. 1 ; these reflectors are placed parallel to one another and spaced in the direction of the collimator axis. Concave semi-reflectors may act as collimating elements co-operating with an equal number of graticules, the concave reflectors serving also to allow the distant object to be viewed. An arrangement is also described which allows of stereoscopic vision, the graticule image appearing either at infinity or at a finite distance, i.e. at the distance of the object; in this arrangement, the graticules and collimating lenses are provided on separate plates, which may be curved, so that the lines joining the optical centres of the collimating lenses with the centres, the graticules co-operating therewith converge to a point. A method of forming the graticules by photographing a master graticule through the assembly of collimating elements is also described.
Patent GB-433374-A (GB)
Title: Improvements relating to pneumatic percussive tools
IPC: B25D9/20
Filed: 1934-02-08
Abstract: 433,374. Percussive tools. CLIMAX ROCK - DRILL & ENGINEERING WORKS, Ltd., 4, Broad Street Place, Blomfield Street, London, and ST. STEPHENS, R. DE H., Homefield, Camborne, Cornwall. Feb. 8, 1934, No. 4248. [Class 124] [See also Group XXVI] A differential sleeve valve with an external shoulder is arranged to the rear of and co-axially with the cylinder. Its ends and interior are open to the rear of the cylinder the fluid supply to which and an auxiliary exhaust therefrom being controlled by the forward enlarged end of the valve. The fluid-supply to the forward end of the cylinder and an auxiliary therefrom are controlled by a recess around the rear end of the valve. Fluid from the cylinder acts on the shoulder to throw the valve forward, and compression reverses it. A valve to blow out the debris is provided. The distributing valve shoulder 26 constantly communicates with the exhaust through a passage 34, and is put into communication with the cylinder through a passage 30 which is opened by the main piston prior to the opening of the main exhaust port 32. The forward side of the shoulder 24 communicates with the exhaust through a passage 36, and a second passage 34 communicates with the exhaust upon movement of the valve. Excess pressure on the area 26 over the rearwardly-acting difference in pressure on the two ends of the valve effects the forward movement. Fluid is supplied to the rear cylinder end through passages 42, 18 over the end of the valve, and to the forward cylinder end through passages 40, 50 controlled by the valve recess between the shoulders 44, 52 which also controls an auxiliary exhaust from the forward cylinder end through a passage 54. During the back stroke of the piston, after the closure of the port 32, an auxiliary exhaust takes place over the shoulder 26 of the valve until the port 30 is passed. The resulting compression reverses the valve which is temporarily locked in its end positions. A small leak port 56 supplies pressure fluid to the rear of the cylinder to ensure starting. A ha,nd-controlled rotary valve 62 may be used to blow out the debris. This closes the apertures 34 to atmosphere and puts them into communication with the main exhaust port 32 which is also closed. A supplementary exhaust 72 is provided for the back of the cylinder. In consequence, the valve is held forwardly and the piston rearwardly to ensure the passage of air to the front of the cylinder.
Patent GB-697185-A (GB)
Title: Improvements in holders for pyrotechnic signals and the like
Inventor: SCHERMULY ALFRED JAMES
IPC: F41C27/06
Filed: 1951-02-23
Abstract: 697,185. Pyrotechnic devices. SCHERMULY PISTOL ROCKET APPARATUS, Ltd. Feb. 25, 1952 [Feb. 23, 1951], No. 4416/51. Class 9(ii) A holder for a self-contained pyrotechnic signal comprises a casing adapted to receive at least the lower end of the signal and provided with an aperture giving access to the ignition means of the signal for manual actuation thereof. 'The holder .'is provided with means by which it can be 'either detachably or permanently 'secured to a rifle.
Patent GB-704715-A (GB)
Title: Improvements in revolving table presses
IPC: B30B11/10
Filed: 1952-02-20
Abstract: 704,715. Rotary mould-table presses. DORSTENER EISENGIESSERI UND MASCHINENFABRIK AKT.-GES. Feb. 20, 1952 [March 30, 1951]. No. 4443/52. Class 87 (2) A mechanically driven revolving table press in which the movements of the table are effected by means of a shifting carriage is fitted with a controlling device which interrupts the regular revolutions of the table one or more times so that two or more pressings of the mould filling are effected at the same position of the table. The shifting carriage 3 is moved to and fro at every revolution of a crank pin 6 and on its forward movement rotates the table .1 through part of a revolution if a pin 12, carried by the shifting carriage 3 and urged upwards by a spring (not shown) engages a stop 15 on the table. Below the shifting carriage is a rail 10, pivoted at 11 and connected through linkage 16 to a wheel 9 driven from the crank shaft 7. When the non-pivoted end of the rail 10 is raised by the linkage and the shifting carriage 3 makes its return stroke, rollers 13 on the lower end of the pin 12 pass under flanges on the rail 10, as shown in the detail, and the pin 12 is retracted from the stop 15 on the table 1 which therefore keeps still while the pressing plunger makes one or more additional strokes.
Patent GB-326628-A (GB)
Title: Improvements relating to the rear mudguards or wings of motor cars and like vehicles
IPC: B62D25/18
Filed: 1929-02-09
Abstract: 326,628. Thwaites, W. A., and Mason & Co., Ltd., C. H. Feb. 9, 1929. Dress - guards. -.In motor-cars &c. fitted with rear mudguards b, a supplementary mudguard or shield a, adapted normally to cover the front portion of the mudguard b, is mounted on the rear door d, which is hinged to the rear of the door space, the guard a swinging clear of the mudguard b when the door is opened, thus exposing a clean dry portion of the mudguard, in order to prevent the soiling of passengers' clothing. The guard a may be permanently secured to the door, or may be removably attached thereto, as by screw studs engaging threaded sockets in the door. According to the Provisional Specification, the guard may also be applied to a door hinged at the front edge. Specification 322,930 is referred to.
Patent GB-879469-A (GB)
Title: Improvements relating to brush gear assemblies for dynamo electric machines
Inventor: JOWETT WALTER GORDON
IPC: H01R39/38
Filed: 1958-02-11
Abstract: 879,469. Brushes for dynamo-electric machines. ENGLISH ELECTRIC CO. Ltd. Feb. 5, 1959 [Feb. 11, 1958], No. 4495/58. Class 35. Two thin brushes 2 in the same box 3 are separately loaded by spring-arms 4 passing over the top of both of them by providing cut-away portions 10 on each brush to clear the arm pressing on the other brush and allow for different rates of wear of the brushes. In the form shown, separate arms press on the upstanding portions of each brush, but in a modification, a single spring- arm with a forked end may be used. Current is shunted from the spring-arms by a flexible braid sweated to a plate 8 and riveted at its other end to the brush-holder frame 1. In a modification one brush may be cut away at its middle to receive two pressure-arms, and the other cut away at its sides to receive one.
Patent GB-217159-A (GB)
Title: Improvements in or relating to the production of feathered fabrics
IPC: A41G11/00
Filed: 1923-02-03
Abstract: 217,159. Wever, F. Feb. 3, 1923. Feather fabrics. - Feathers are sewn flat as shown in Fig. 3 upon ribbons or fabric bands 1 by lines of stitching, the short projecting parts being folded over and held in position by a whip stitch seam 4 overlapping one edge of each band 1, and then the bands are sewn on to a supporting fabric 5 so that the feathers on one band overlap the edge of the adjacent band. In a modification, feathers are sewn on to a band so as to project over both edges. The band is folded and united by means of a seam 6, Fig. 6, made by a two-needle sewing-machine. These bands are then sewn to a supporting fabric on edge. The supporting fabric may have its two ends connected by a transverse seam so that it can be fed to the sewing-machine in the form of an endless band and lines may be marked on it to enable the feather bands to be sewn continnuously upon the fabric along spirally-arranged lines.
Patent GB-1428551-A (GB)
Title: Keyboard musical instruments
IPC: G10H1/18
Filed: 1973-01-30
Abstract: 1428551 Electrophonic musical instruments B W ORMAN 24 April 1974 [30 Jan 1973] 4535/73 Heading G5J A keyboard musical instrument comprises a  keyboard 12, the keys carrying letters forming the same pattern as on a typewriter keyboard, and a tone generator containing a variable resistance R K  selected to provide the required note when a key is depressed. The tone generator may be connected with a voicing unit providing for example first and third harmonics, or the keys may be arranged to combine tones from a plurality of tone generators, to provide chords and to imitate different musical instruments. The instrument could be used for teaching typing by providing values of R K  such that well known tune is played when a particular test sequence or message is typed.
Patent GB-380709-A (GB)
Title: Improved means for simultaneously operating the valves in internal combustion engines
IPC: F01L1/26
Filed: 1932-02-16
Abstract: 380,709. Valves ; valve gear. FIAT SOC. ANON., 250, Viz Nizza, Turin, Italy. Feb. 16, 1932, No. 4592. Convention date, June 30, 1931. Addition to 380,688. [Class 7 (vi).] In valve gear as described in the parent Specification, wherein pairs of cams actuate pairs of inlet and exhaust valves from a single cam shaft, each pair of cams acting on a cross piece guided by a central stem suspended from the cam shaft, the valve springs, instead of being arranged around the valve stems, are disposed around the central guide stems, so that one set of springs serves for each pair of valves. The Figure shows a pair of inlet valves 3 actuated by a pair of cams 4 through a cross piece 6 guided by a central stem 7, around which are arranged the valve springs 10a, 10b, 10c. The lower ends of the springs seat against the cylinder head, and the upper ends against a washer 12, to which the valve stems are connected by ball-and-socket connections 14.
Patent GB-713275-A (GB)
Title: Improvements relating to disinfecting or sterilizing apparatus
IPC: A61L2/20
Filed: 1952-02-21
Abstract: 713,275. Sterilizers. SPARKHALL, J. G. Feb. 20, 1953 [Feb. 21, 1952], No. 4627/52. Class 81(1) A disinfecting or sterilizing cabinet comprises tightly closing doors 6 in opposite sides 1, 2 for the introduction and withdrawal of batches of articles, racks fixed in the cabinet for the reception of the articles, a vaporizing device 13 connected to the cabinet for the introduction of disinfecting or sterilizing vapour and a fan 15 arranged for discharging the vapour-laden atmosphere from the cabinet. As shown, the two longer sides forming the front 1 and the back 2 of the cabinet which are located one on either side of a partition 3 separating a "sterile" or "disinfected" area 4 from an "infected" area 5 are each formed by hingedly mounted double doors 6 meeting at the middle and between which sides are provided several spaced fixed grids, e.g. comprising longitudinal metal tubes 11 at the front and back and spaced wooden transverse rods 12 received in sockets on the tubes, for receiving the articles to be treated. A device 13 for vaporizing , a liquid disinfecting or sterilizing substance which may comprise a boiler or continuous-tube heater of known type and may be heated by gas, oil or electricity, is mounted externally at one end 14 of the cabinet on the "infected" side 5 of the partition 3, the vapour being introduced into the cabinet through a connection 13<SP>1</SP> and eventually extracted by an electrically driven extractor fan 15 mounted in a trunk 16 then discharging to atmosphere through a duct 19, the fan communicating with the interior of the cabinet through a flap-controlled opening 17, Fig. 2 (not shown). Two apertures 20 normally closed by flaps 20<SP>1</SP> are provided one above the other in the opposite end 21 on the "sterile" side 4 of the partition 3 to admit fresh air during the operation of the fan to remove vapour-laden atmosphere. The walls and doors may be of hollow construction and may be built up of two layers 22 of plywood secured by adhesive under heavy pressure to opposite sides of a framing or lattice of wooden bars 23.
Patent GB-716444-A (GB)
Title: Building boards securing device
Inventor: RICHARDSON GILBERT
IPC: A61F13/08
Filed: 1952-02-22
Abstract: 716,444. Securing wall &c. boards. RICHARDSON ROOFING CO., Ltd. Nov. 21, 1952 [Feb. 22, 1952], No. 4756/52. Class 20 (4) Fibre boards B', B', forming a roof or wall lining are supported on a pair of flanges of a metal bar T, the central web 3 having an L or V-shaped hole 2 to receive a key element 1 of similar cross section, the limb 5 of strip 1. being provided with a central slot 4 for locking with the web 3 and the other limb 6 having a stop 8 opposite the slot 4. The board: B<SP>1</SP> is placed on one of the flanges, secured in position by inserting the: key element 1 until stop 8 engages the web 3, element 1 being rotated so that the slot 4 locks with the web 3 and limb 6 engages the board B', and board B' is then inserted between limb 6 and the other flange. The portion 7 of limb 6 is of increased width. so as to form stop 8. The limb 5 may have its upper corners cut off at 45 degrees:
Patent GB-1025574-A (GB)
Title: Novel androstane compounds and means for producing the same
Inventor: PALMER PETER JOHN
IPC: C07J75/00
Filed: 1964-02-04
Abstract: The invention comprises compounds of formula <FORM:1025574/C2/1> wherein R is hydrogen or a C1- 4 alkanoyl group, and their preparation by reduction of a compound of formula <FORM:1025574/C2/2> with lithium in liquid ammonia to form a compound of formula <FORM:1025574/C2/3> reducing this with lithium aluminium hydride to form a compound of formula <FORM:1025574/C2/4> and oxidizing this with chromium trioxide and sulphuric acid, followed if desired by acylation. The compounds of the invention have anabolic activity.
Patent GB-1533214-A (GB)
Title: Colour-formers
IPC: C07D279/08
Filed: 1977-02-04
Abstract: 1533214 Colour formers FUJI PHOTO FILM CO Ltd 4 Feb 1977 [4 Feb 1976] 04773/77 Heading C4P The invention comprises colour formers having the general formula wherein A, and A 2  which may be different represent an aryl or a hetero ring radical, or (A 1  + A 2 ) represents a hetero ring or a fluorene ring, ring B is an aromatic hydrocarbon ring or a hetero ring, and Y is H, alkyl, aralkyl, alkenyl, alkynyl, aryl, a hetero ring, amino, amido, hydroxy, or thio group provided that at least one of A 1 , A 2 , (A, + A 2 ) or the fluorene radical is an electron donating aryl, hetero or fluorene group. They are prepared by oxidizing a thioamide compound of the general formula wherein A 1 , A 2 , B and Y are as above preferably at below pH 7 using a metal oxide, a quinone, a peroxide or an organic per acid at -10 to 50 C. (40-100 C. for the quinones). The colour formers are used in pressure sensitive, heat sensitive and electrothermic sensitive recording papers.
Patent GB-525074-A (GB)
Title: Improvements relating to windscreen wipers
IPC: B60S1/40
Filed: 1939-02-14
Abstract: 525,074. Windscreen wipers. WINGARD (M. A.), Ltd., and VINCENT, C. B. Feb. 14, 1939, No. 4782. [Class 138 (i)] A fitting for attaching different forms of wiper arms to the blades comprises an inverted U-shaped clamp a, Fig. 2, fitted with a screw g and enclosing an anvil member b, the clamp and anvil being secured to the blade f by a common detachable pivot e. The anvil is provided with projections k and its edges are turned inwards to form a groove h, Fig. 5. An adaptor v, Fig. 14, with a projection x may be fitted to the anvil for certain forms of arm. Specification 524,235 is referred to.
Patent GB-1426442-A (GB)
Title: Wet treatment and drying of textile materials
IPC: D06B9/00
Filed: 1973-01-31
Abstract: 1426442 Treating textiles; singeing fabrics HOECHST AG 31 Jan 1973 [25 March 1972 12 Oct 1972 (3)] 4829/73 Headings D1P and D1S [Also in Division F4] Textile material containing liquid remaining after a process such as washing rinsing dyeing or dry cleaning is impregnated with a burnable organic liquid and then dried, and in some cases singed by burning off the liquid. The textile material may be natural and/or synthetic fibres in the form of cables combed material, threads, yarns, woven, knitted or non-woven fabric. Exemplified materials are fabrics of wool, cotton, and 67% polyester / 33% cotton. The burnable liquid is preferably methanol, ethanol, isopropanol, dioxane and mixtures thereof or petroleum ether (b.p. 60 to 95‹C). Nonyl phenol, tributyl phenol or isotridecyl alcohol may be oxyethylated with 4 to 18 moles ethylene oxide and added to the burnable liquid particularily to petroleum ether which is thereby made emulsifyable with water. The textile may be treated in aqueous solution and then passed through one or more baths of burnable solvent or through a mixture of 10 to 90% by volume of burnable solvent and 90 to 10% water. In example 4 the treatment comprises washing and is carried out using a mixture of 75% methanol and 25% water and 0.5 g/l of the reaction product from nonyl phenol and 10 mols ethylene oxide, followed by rinsing in three compartments containing the same methanol/water mixture. For safety the textile material and/or the bath(s) of burnable liquid may be cooled to 1 to 40‹C below the ignition point of the liquid. In Figure 1 impregnated fabric 5 passes through suction means 9 and inlet means 8 of burning off chamber 1. Heating devices 12 maintain the temperature above the ignition point. The vapour is ignited by gas flames or electric ignition means 2. Air enters via tubes 3 and the combustion products exit via tubes 4. Swivellable air nozzles 13 3 control the flame which is monitored by means 14. The flame can be extinguished by stopping the intake of air and by supplying nitrogen via tubes 10. Rolls 6 draws the fabric through the burning chamber and act as a seal. The side walls of the chamber may be partly or completely open. Downward movement of the fabric is possible. Figure 2 (not shown) illustrates the combination of a cooling drum (18) cooling trough (19) and foulard squeezing rolls (20), all contained in a chamber (21) which maintains the pressure at less than atmospheric, the burning off chamber of figure 1 and sieve drums (16) over which the fabric is passed for final drying and/or fixing whilst hot air is sucked through the fabric into the sieve drums. Figure 3 (not shown) illustrates a burning off chamber in which the fabric passes around a heated drum which may be closed or perforated, hot air being blown through the perforations in the latter embodiment.
Patent GB-1514735-A (GB)
Title: Angular position transducer for use in engine timing controls
IPC: F02P5/145
Filed: 1974-05-21
Abstract: 1514735 Measuring angular displacement LUCAS ELECTRICAL Ltd 16 May 1975 [21 May 1974 4 June 1974 8 Oct 1974 (2)] 04867/78 04868/78 04869/78 and 04870/78 Divided out of 1514734 Heading G1N The subject-matter of the present Specification is substantially as that in Specification 1514734 but the claims relate to an apparatus in which a peak detector circuit is specified.
Patent GB-184505-A (GB)
Title: Method of casting steel ingots and mould for use therewith
IPC: B22D7/00
Filed: 1921-02-11
Abstract: 184,505. Marks, E. C. R., (Valley Mould & Iron Corporation). Feb. 11, 1921. Moulds. - Ingots are cast in inverted troughshaped moulds. A series oi moulds 7, each having a fire-clay runner 9 at one end and inclined sides and end 17, are arranged on an inclined base 1 with their funnels 12 adjacent. The runner 9 has two gates 10, 11 and is arranged. in a groove so as to leave gas outlets 14, 15, 16 not large enough to form undesirable fins. When the ingot is cool enough it is stripped and the runner broken by lifting the lower end by crane hooks in two staples 20, then the mould is transferred by crane hooks in the three staples 20, 21 to another base and a new runner inserted.